Prevalence of Work Related Musculoskeletal Disorders and Quantification of Ergonomic Hazards Among Optometrists In Chennai- A Cross Sectional Study
Published 16-08-2025
Keywords
- Optometry,
- Ergonomics,
- Work-related musculoskeletal disorders,
- RULA,
- Nordic Musculoskeletal Questionnaire
How to Cite
Copyright (c) 2025 Sayantika Das, Rashima Asokan, Janani Suresh, Prescillah Caron, Sunder Subramaniam

This work is licensed under a Creative Commons Attribution 4.0 International License.
Dimensions
Abstract
Introduction: Optometrists have to perform precision-based clinical tasks, which often require prolonged static sitting, sustained awkward postures, and repetitive movements. These frequent biomechanical demands can lead to work-related musculoskeletal disorders (WMSDs). Despite high prevalence of WMSDs globally, very limited research is available for Indian optometrists, particularly, among those who are working in tertiary eye care hospital. Thus, this present study aimed to determine the prevalence of work-related musculoskeletal disorders (WMSDs) and to quantify working posture-related ergonomic risks among optometrists in a high-volume tertiary eye care setting. Methods: A cross-sectional observational study was conducted in July, 2025 at five departments of a tertiary eye care hospital, Chennai. Ergonomic risks were evaluated using direct observation, videography, workstation measurements, the Nordic Musculoskeletal Questionnaire (NMQ), and Rapid Upper Limb Assessment (RULA). Results: The chronic prevalence of discomfort was neck flexion (>20° for 45 ± 12 min/hour) and prolonged shoulder elevation were common. Over 70% of participants lacked formal ergonomic training and reported fatigue within 2–3 hours of continuous clinical work. Conclusion: This study is an evidence of existing scenario, and study findings will help future researchers to plan intervention strategies.
References
- Bridger, R. (2017). Introduction to Human Factors and Ergonomics, CRC Press.
- Da Costa, B.R., Vieira, E.R. (2010). Risk factors for work-related musculoskeletal disorders: A systematic review of recent longitudinal studies. American Journal of Industrial Medicine, 53(3), 285–323. https://doi.org/10.1002/ajim.20750
- Diaconita, V., Uhlman, K., Mao, A., Mather, R. (2019). Survey of occupational musculoskeletal pain and injury in Canadian ophthalmology. Canadian Journal of Ophthalmology, 54(3), 314–322. https://doi.org/10.1016/j.jcjo.2018.06.021
- Donahue, S.P., Nixon, C.N., (2016). Visual System Assessment in Infants, Children, and Young Adults by Pediatricians. Pediatrics, 137(1), 28–30. https://doi.org/10.1542/peds.2015-3596
- Kaup, S., Shivalli, S., Kulkarni, U., Arunachalam, C. (2020). Ergonomic practices and musculoskeletal disorders among ophthalmologists in India: An online appraisal. European journal of ophthalmology, 30(1), 196–200. https://doi.org/10.1177/1120672118815107
- Kuorinka, I., Jonsson, B., Kilbom, Å., Vinterberg, H., Biering-Sørensen, F., Andersson, G., Jørgensen, K. (1987). Standardised Nordic questionnaires for the analysis of musculoskeletal symptoms. Applied Ergonomics, 18(3), 233–237. https://doi.org/10.1016/0003-6870(87)90010-X
- Long, J., Naduvilath, T.J., Hao, L.E., Li, A., Ng, W., Yip, W., Stapleton, F. (2011). Risk factors for physical discomfort in Australian optometrists. Optometry and vision science: official publication of the American Academy of Optometry, 88(2), 317–326. https://doi.org/10.1097/OPX.0b013e3182045a8e
- McAtamney, L., Corlett, E.N. (1993). RULA: A survey method for the investigation of work-related upper limb disorders. Applied Ergonomics, 24(2), 91–99. https://doi.org/10.1016/0003-6870(93)90080-S
- Pearce, Z.D., Zatkin, M.A., Bruner, J. (2017). Musculoskeletal Disorders in Ophthalmologists after Simulated Cataract Operation: A Pilot Study. Journal of Osteopathic Medicine, 117(12), 749–754. https://doi.org/10.7556/jaoa.2017.146
- Punnett, L., Wegman, D.H. (2004). Work-related musculoskeletal disorders: The epidemiologic evidence and the debate. Journal of Electromyography and Kinesiology, 14(1), 13–23. https://doi.org/10.1016/j.jelekin.2003.09.015
- Schechet, S.A., DeVience, E., DeVience, S., Shukla, S., Kaleem, M. (2020). Survey of musculoskeletal disorders among US ophthalmologists. Digital journal of ophthalmology: DJO, 26(4), 36–45. https://doi.org/10.5693/djo.01.2020.02.001
- Shieh, S.H., Sung, F.C., Su, C.H., Tsai, Y., Hsieh, V.C.R.., (2016). Increased low back pain risk in nurses with high workload and shift work pattern. Industrial Health, 54(3), 252–259.
- Weinreb, R.N., Aung, T., Medeiros, F.A. (2014). The pathophysiology and treatment of glaucoma: A review. JAMA, 311(18), 1901–1911. https://doi.org/10.1001/jama.2014.3192